Improvement in counting-registers



H. CHANDLER.

Improvement in Counting-Register.

N0. 130,017. PatentedJuly30,1872.

LTNITED STATES PATENT EFIGE.

HENRY CHANDLER, OF BUFFALO, NEW YORK.

IMPROVEMENT IN COUNTING-REGISTERS.

Specification forming part of Letters Patent No. 130,017, dated July 30,187;?.

SrEcirIcATroN.

I, HENRY CHANDLER, of the city of Buffalo, in the county of Erie andState of New York, have invented certain Improvements inCounting-Machines, of which the following is a specilication:

Previous to my invention counting or registering machines have beenconstructed with a driving-wheel having a single tooth projecting fromits periphery, which engages with the notches of the numbering-wheel andturns the latter the distance of one notch or tooth for every revolutionof the driving-wheel. After the counting-wheel has been moved one degreeit is held stationary during the remainder of the revolution of thedriving-wheel by the latter, which fits and turns in hollows or curvedrecesses formed in the periphery of the numbering-wheel between thenotches thereof. To insure the turning of the numbering-wheel the properdistance each time, and to hold it stationary until the driving-wheelhas completed its revolution preparatory to moving it a second time,requires such an accurate construction and nice adjustment of the partsas to render the device objectionable for cheap counting or registeringmachines, especially those which are subjected to considerable jarring,as is the case with such mechanism when attached to skid-ways, &c. Theobject of my invention is the construction of a registering mechanismwhich will be reliable in its operation without requiring such niceconstruction and adjustment of the parts.

The invention consists, first, in the combination, with a ratchetnumbering-wheel, drivingshaft, and radial actuating-arm attachedthereto, of a locking rim or wheel, provided with a notch or recess forthe passage of said arm, and arranged eccentrically with thedriving-shaft, which it surrounds, and by which it is rotated in suchamanner that at the time the actuatingarm leaves the tooth of thenumbering-wheel the face of the locking-wheel will be iiush with the endof the arm, and will have engaged between the tooth just released andthe one next behind, thereby insuring the Alocking of thenumbering-wheel and the holding of the saine stationary until theactuating-arm has completed its revolution and engaged with anothertooth; second, in the combination of two or more eccentrically-arrangedlocking-wheels,

actuating-arms, and numbering-wheels, as hereafter described.

In the accompanying drawing, Figure I is a sectional elevation of myimproved registering mechanism. Fig. II is a sectional, plan viewthereof. Fig. III is an elevation of the same, showing the dial-plates.Fig. IV is a vertical section on line x Fig. II; and Fig. V is acorresponding elevation. Fig. VI is a vertical section on line y y ofFig. II, and Fig. VII a corresponding elevation.

Like letters designate like parts in each of the figures.

A A represent the side plates, and a the connectin g-stays, forming theframe of the registering-machine. b is the driving-shaft, supported inthe plates A, and receiving its motion from the apparatus to which thedevice is attached. O G1 G2 are three counting-wheels, arranged in anordinary manner on the shafts c cl c2 supported in the plates A, andeach provided in its periphery with ten teeth or notches. d di d2 arethe radial arms, secured to the shafts b c c1, respectively, (the armsd1 d2 being also fastened to the wheels C (51,) so as to actuate thecounting-wheels one degree for every revolution of the respectivedriving-shafts. As is usual in such machines, E El E2 are the lockingrims or wheels, arranged eccentrically around the shafts b o c1,respectively, and each provided with a notch, e, in its rim, throughwhich the actuating-arm projects. The lockin g-rims E El E2 are arrangedon hubs f fl f2, secured to the inner side of the plate A, as clearlyshown in Fig. II, and are revolved thereon by the actuating-arms d Ilcl2, which project through the notches thereof. The locking-wheels D areso arranged with reference to their counting-wheels that a straight linedrawn through the center of both passes equidistant between the twoteeth or notches in contact with the locking-wheel, as clearly shown inFig. I, this being the most favorable position for the locking-wheel tohold the counting-wheel in place. The centers of the locking-wheels areso arranged with reference to the driving-shafts that the actuating-armsare gradually withdrawn into the locking- Wheels as the counting-wheelsare rotated, and entirely disengaged from the notch or tooth of thelatter when the same have been moved exactly one degree, as indicated bythe dotted circle in Fig. A solid portion of the locking-wheels,revolving with the actuating arms, engages between the adjacent notchesof the counting-wheels before the actuatingarm leaves the latter,whereby the same are securely held in place until the driving-shaft hascompleted its revolution. The rim of the locking-wheels is cut awayadjacent to the notch e in front of the actuating-arms to enable thetooth of the counting-wheel, with which the arm en gages, to pass by thelocking-wheel, while the rear edge of thenotch e is made nearly radialto insure the prompt engagement of the solid portion of thelocking-wheel between the notches of the counting-wheel before theactuating-arm entirely disengages therefrom. As

the locking-wheel may thus engage with the counting-wheel before theactuating-arm has become disengaged therefrom, it is obvious that aslight inaccuracy in the shape of the lockin g;wheel, or its adjustmenta little further from the counting-wheel, or a slight reduction in thelength of the actuating-arm, will not obstruct vor prevent the properand reliable operation of the parts.

What I claim as my invention is 1. The combination, with a ratchetnumbering-wheel, driving-shaft, and actuating-arm thereof, of arevolving locking-wheel provided with the notch o, and arranged eccentricallywith the driving-shaft, so as to engage between

